I heard them mention a few times "the walkway behind the cement plant" and got to thinking there's only two really large cement plants in the city, and only one that I can think there being a pedestrian walkway behind (along the LRT tracks), and sure enough when I drove by last night there were three Initial Security cars and guards stationed along Stadium Road.
I have never heard private security use voice inversion before though. From what I have monitored, the only users of voice inversion around have been towing companies and Camrose police.